3973641 has 32 divisors (see below), whose sum is σ = 6666240. Its totient is φ = 2052864.

The previous prime is 3973639. The next prime is 3973649. The reversal of 3973641 is 1463793.

It is not a de Polignac number, because 3973641 - 2¹ = 3973639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3973649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8961 + ... + 9393.

It is an arithmetic number, because the mean of its divisors is an integer number (208320).

Almost surely, 2^3973641 is an apocalyptic number.

It is an amenable number.

3973641 is a deficient number, since it is larger than the sum of its proper divisors (2692599).

3973641 is a wasteful number, since it uses less digits than its factorization.

3973641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its digits is 13608, while the sum is 33.

The square root of 3973641 is about 1993.3993578809. The cubic root of 3973641 is about 158.3906505935.

The spelling of 3973641 in words is "three million, nine hundred seventy-three thousand, six hundred forty-one".